A method for preparing a whitening cosmetic containing a cinnamomum leaf extract

Abstract

The application discloses a preparation method of whitening cosmetics containing cinnamon leaf extract and belongs to the technical field of cosmetics. The existing cinnamon leaf cosmetics are mostly prepared by using essential oil, and have the problems of insufficient whitening effect, great irritation, easy oxidation and discoloration in the formula, and the synergistic effect of polyphenol whitening components and flavonoid antioxidant components in the cinnamon leaf is not utilized. According to the application, the first extract is obtained by immersing cinnamon leaves in 88% to 98% ethanol at 22 DEG C to 28 DEG C, the second extract is obtained by immersing the residue in 40% to 60% ethanol at the same temperature, the two extracts are combined in a volume ratio of 1:0.5 to 1:2 after being reduced and concentrated respectively, and the cinnamon leaf extract powder is prepared by freeze-drying, and then the whitening cosmetics are prepared by mixing the powder with cosmetic accessories. The method utilizes the natural proportion of polyphenols and flavonoids in the extract to form a synergistic protection system, endows the product with inherent anti-discoloration ability, and does not need to add additional antioxidants. The method is mainly used for preparing the cosmetics with the whitening effect and color stability.

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